package cn.zhentao.controller;

import cn.hutool.json.JSONObject;
import cn.zhentao.common.AliPayConfig;
import cn.zhentao.pojo.Orders;
import cn.zhentao.service.IOrdersService;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("alipay")
public class AliPayController {
    private static final String GATEWAY_URL = "https://openapi-sandbox.dl.alipaydev.com/gateway.do";
    private static final String FORMAT = "JSON";
    private static final String CHARSET = "UTF-8";
    private static final String SIGN_TYPE = "RSA2";
    @Resource
    private AliPayConfig aliPayConfig;
    @Resource
    private IOrdersService ordersService;
    @GetMapping("pay")
    public void pay(String id, HttpServletResponse httpResponse) throws Exception {
        Orders orders = ordersService.getById(id);
        AlipayClient alipayClient=new DefaultAlipayClient(GATEWAY_URL, aliPayConfig.getAppId(), aliPayConfig.getAppPrivateKey(), FORMAT,CHARSET, aliPayConfig.getAlipayPublicKey(), SIGN_TYPE);
        AlipayTradePagePayRequest request=new AlipayTradePagePayRequest();
        request.setNotifyUrl(aliPayConfig.getNotifyUrl());
        JSONObject bizContent=new JSONObject();
        bizContent.set("out_trade_no",orders.getId());
        bizContent.set("total_amount",orders.getJiage());
        bizContent.set("subject",orders.getOrderNumber());
        bizContent.set("product_code","FAST_INSTANT_TRADE_PAY");
        request.setBizContent(bizContent.toString());
        request.setReturnUrl("http://localhost:5173/user/orders");
        String form="";
        try {
            form=alipayClient.pageExecute(request).getBody();
        }catch (AlipayApiException e){
            e.printStackTrace();
        }
        httpResponse.setContentType("text/html;charset=" + CHARSET);
        httpResponse.getWriter().write(form);
        httpResponse.getWriter().flush();
        httpResponse.getWriter().close();
    }
    @PostMapping("notify")
    public void payNotify(HttpServletRequest request) throws Exception{
        if(request.getParameter("trade_status").equals("TRADE_SUCCESS")){
            System.out.println("=============支付宝异步回调=============");

            Map<String ,String > params=new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (String name : requestParams.keySet()) {
                params.put(name, request.getParameter(name));
            }

            String sign = params.get("sign");
            String content = AlipaySignature.getSignCheckContentV1(params);
            boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8");
            if(checkSignature){
                System.out.println("交易名称:"+params.get("subject"));
                System.out.println("交易状态:"+params.get("trade_status"));
                System.out.println("支付宝交易凭证号:"+params.get("trade_no"));
                System.out.println("商户订单号:"+params.get("out_trade_no"));
                System.out.println("交易金额:"+params.get("total_amount"));
                System.out.println("买家在支付宝唯一id:"+params.get("buyer_id"));
                System.out.println("买家付款时间:"+params.get("gmt_payment"));
                System.out.println("买家付款金额:"+params.get("buyer_pay_amount"));

                String tradeNo = params.get("out_trade_no");
                //更新订单状态设置支付信息
                Orders orders = ordersService.getById(tradeNo);
                System.out.println("------------"+tradeNo);
                orders.setStatus(5);
                ordersService.updateById(orders);
            }
        }
    }
}
